| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a useful laminated polyester film in which an increase in film haze after heat treatment for a long period of time is as small as possible, and which shows excellence in damage prevention, workability and productivity. <P>SOLUTION: The polyester film has an application layer obtained by applying coating liquid containing a quaternary ammonium salt-containing polymer, a polyethylene glycol-containing acrylate polymer and a crosslinking agent on one surface of a laminated film comprising at least three or more polyester layers and drying the same. The polyester film has the inner haze of ≤0.6% and surface roughness Ra of ≥9 nm. <P>COPYRIGHT: (C)2012,JPO&INPIT |
